Heater.



SOHAEPER.

HEATER. APPLICATION FILED JUNE 21, 1909.

Patented June 28, 1910.

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HEATER.

APPLICATION FILED JUNE 21, 1909 lwnwew 5| rwwm an, WOYWLITKOGRAPNERS. WLSHINGTON. D

CASPER G. SCHAEFER, 0F CAMBRIDGE CITY, INDIANA.

HEATER.

Specification of Letters Patent.

Patented June 28, 1910.

Application filed June 21, 1909. Serial No. 503,352.

To all whom it may concern:

Be it known that I, CASPER C. SOHAEFER, a citizen of the United States, and a resident of Cambridge City, in the county of \Vayne and State of Indiana, have invented a new and Improved Heater, of which the following is a full, clear, and exact description.

This invention relates to heaters, and particularly to such as are adapted to burn gas.

The object of the invention is to produce a heater of this class having an improved construction presenting a screen or shield which is disposed about the flame, and further, to provide improved means for increasing the radiating surface.

The heater has a construction which will insure a thorough circulation of air through and across the heater surface.

The invention consists in the construction and combination of parts to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had. to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical central section taken on the line 11 of Fig. 2, through a heater constructed according to my invention, a portion thereof being brokeiraway; Fig. 2 is a plan of the heater shown 1n Fig. 1, partially broken away; Fig. 3 is a plan of the burner shown in Fig. 1; Fig. 4 is a vertical section through the burner and showing a modified form thereof; Fig. 5 is a vertical section through the upper part of the heater showing a modified construction in which the heater presents a reduced radiating surface; and Fig. 6 is a plan showing a modified form of the upper head of the heater.

Referring more particularly to the parts and especially to Figs. 1 to 3, 1 indicates the base of the heater which is adapted to stand upon the floor 2. The base 1 is reduced at its upper portion so as to receive a tubular sleeve 3, and on the upper end of this sleeve 3, the cup 4 of the burner 5 is seated. Upon this cup 4: the cover 6 of the burner is seated. This cover has a tubular body 7 which extends down into the interior of the cup 4: so as to form a substantially continuous tube with the sleeve 3 so as to enable the air to pass upwardly through the base which is open below, and through the burner. The cover 6 is provided with a plurality of nipples 8 which project upwardly and outwardly, as indicated.

Between the cup 4 and the cover 6, an an nular gas chamber 9 is formed, and this gas chamber is supplied with gas through a duct 10 which projects inwardly into the interior of the tubular body 7. This duct 10 has a downwardly extending inlet tube 11 attached thereto and this tube seats over a gas jet 12, said gas jet being supplied by a gas pipe 13 which may include a valve 14 for controlling the flow of gas, as will be readily understood.

On the upper side of the cover 6 a substantially V-shaped groove 15' is provided, and this groove 15 forms a seat for the lower end of a conical deflector or cone 16. On the upper end of the cone 16, a head 17 is seated. This head is slightly countersunk so that it projects slightly down into the mouth of the cone, and is formed with a flange 18 which rests upon the edge of the cone. This head 17 has a tubular body or post 19 which is disposed centrally thereupon, and projects upwardly above the head, as shown. The upper end of this tubular body 19 is open, as shown, and is formed with a narrow flange 20 upon which there is seated a hood or bonnet 21. This bonnet has an opening 22 which registers with the open end of the tubular body 19. The outer portion of the hood 21 is formed into a downwardly curved apron 23, and to the lower edge of this apron a screen or skirt 2% is attached. This screen may have an iron body 25 in which a continuous sheet 26 of mica, or similar material, is mounted. The iron frame of the screen is provided at intervals with openings 27 through which the flame may be seen.

The cone 16 is held on its seat by means of a conical ring 28 which is received in its lower end, as shown. This ring has a flange 29 through which bolts 80 pass, and these bolts pass downwardly through the burner and through the sleeve 3, their lower ends passing through lugs 31 which are formed at the upper end of the base. In this way the cone, the burner, and the sleeve are all secured rigidly to the base. The head 17 is formed with a plurality of openings 32, the edges of which are bentupwardly so as to form nipples or flanges which serve as seats for the lower ends of air tubes 3% which pass vertically upwardly from the head. These tubes 34 pass through openings 35 formed in the hood to correspond therewith. The edges of these openings 35 are bent upwardly so as to form seats for gas tubes or flues 36 of enlarged diameter, through which the tubes 34: pass centrally. These tubes 341- and 36 are surmounted by an upper head 37, the form of which is clearly shown in Fig. 2. This upper head has a circular center or body 38 which is closed below and provided with an opening 39 above. From this body 38 a plurality of arms 40 radiate, and these arms are hollow and communicate with the interior of the center 38. Each arm is formed on its under side with a seat 11 which receives the upper end of the corresponding gas flue 36. The upper sides of the arms are provided with openings 42, the edges of which are formed into seats receiving the upper ends of the air tubes or flues 34. In this way the gases which come up through the tubes 36 are received by the arms 40 and pass inwardly through the center 38, from which they are discharged upwardly through the opening 39.

Instead of forming the sleeve 3 as a separate piece, from the burner, I may form it integral with the cup of the burner, as indicated in Fig. 1. Under these circumstances the cup may be cast integral with the tubular body 43, which body serves the purpose of the sleeve 3 for conducting the air up through the burner. It also includes an inlet tube a4 which brings up the gas and connects with the duct 45 which leads the gas into the gas chamber 16 which is formed between the cover 47 of the burner and the cup 48 thereof. It should be understood that the flues 36 and the adjacent parts constitute a radiator presenting a great superficial area, and it should appear that the gases of combustion which pass upwardly in the flues 36 surround the end tubes or air flues 34: so that the air which passes upwardly in the flues 34 will become heated and then discharge into the interior of the room in which the heater is placed.

The upper end of the center 38 is contracted so as to form a mouth 19 over which a stove pipe may be seated if it is desired to carry off the gases of combustion, otherwise they will discharge into the room.

In Fig. 5 I illustrate a modified form of the heater in which I materially modify the radiator. Referring to this figure, 50 represents the cone on the upper end of which a head 51 is seated. This head 51 is provided with a plurality of openings having upardly flanged edges 52 which form seats for flues On these flues 53 a hood or bonnet 5% is seated, said bonnet having openings with flanges at the edges thereof which seat within the mouths of the flues, as indicated. The bonnet 54 has a centrally disposed opening 56, and its outer portion is formed into a downwardly curved apron 57. From the lower edge of this apron 57, a screen 58 depends, and this screen may be formed of metal having openings 59 dis posed at intervals therein.

In the operation of the burner, the gas is ignited as it issues from the nipples 8, and as the flame shoots upwardly it is deflected out- "ardly by the cone 16. The screen 24 cuts oft direct radiation from the flame and the gases of combustion which mix with air passing upwardly around the cone, find their way into the bonnet 21. From the bonnet they pass upwardly in the tines 36, whence they pass to the head 37, )assing through the arms 40. As soon as the temperature of the radiator rises, an upward current of air is induced in the base 1, which current passes upwardly through the sleeve 3 and through the tubular body 7 into the cone 16. From the cone 16 a portion of the air passes upwardly through the inner tubes or air flues 3 1, while a large proportion of the air passes upwardly through the opening 22, passing upwardly between the arms 10 or outwardly between the flues 36. In this way a very intimate contact between the air and the heated walls takes place, and the air is made to pass over a relatively large heated area.

In the form of the heater shown in Fig. 5, the gases of combustion pass into the hood 57 and move forwardly therein, finding exit through the opening 56; the current of air passing up through the burner and through the cone 50 passes up through the flues and out through the upper side of the hood. In this way the air passingthrough the flues becomes heated by the hot gases of combustion in the hood.

Referring to the burner 5, attention is alled to the details of its construction. The cup or lower portion of the burner has a tubular inner portion or body 4-, and trom about the middle point of this tubular body a curved flange 1 projects upwardly. Upon the edge of this flange 4P the cover 6 seats. On the inner side of the tubular body 1 about opposite to the middle point of the opening from the gas duct 10, an inwardly projecting rib or baffle 4 is formed. The purpose of this battle is to assist in bringing about an even distribution of the gas which passes to the nipples S. It has the effect of retarding the upward flow of the gas which comes from the duct 10 so that a certain portion of the gas tends to remain below the baflle. This gives opportunity for the gas to circulate around in the annular space between the tubular body 7 and the tubular body 4 In this way the gas will distribute itself more evenly, that is, a certain amount of gas will pass to the nipples of the burner which are remote from the duct 10. In this way I render the flow of gas to all the nipples of the burner substantially uniform. It will be observed that an annular duct 46 is formed between the tubular body 7 and the tubular body a and in this duct the gas is received directly from the duct 10.

In Fig. 6 I illustrate a modified form of the invention in which I provide a head 40 which is of circular form and which does not present radiating arms, as in the preferred form. In this form of the invention the large tubes all communicate with the interior of the head so that the currents of air coming up the diflerent tubes mix together, but they pass out through a central opening 40 The inner tubes pass through the head by means of openings 40.

Having thus described my invention, I claim as new and desire to secure by Letters Patent,

1. In a heater of the class described, in combination, a burner, a conical deflector for throwing the flame outwardly from said burner, a head seated on the deflector, a hood carried by the head and surrounding the upper portion of the deflector and spaced therefrom, said hood being adapted to receive the gases of combustion, means for directing an air current upwardly through said deflector, a plurality of air flues seated on the head and communicating with said deflector and adapted to receive the air current therefrom, said hood having openings therethrough, through which said air flues pass upwardly, gas flues connected with said hood at said openings and surrounding said air flues and spaced therefrom, and an upper head the interior whereof communicates with said gas flues, and adapted to guide the gases of combustion therefrom inwardly, said upper head having openings communicating with said air flues and permitting the upward passage of air through said upper head.

2. In a heater of the class described, in combination, a base, a burner disposed above said base and having an annular seat thereupon, a cone received upon said seat, a cone ring within said cone and in engagement therewith, and bolts mounted in said cone ring passing downwardly through said burner and secured to said base.

3. In a heater of the class described, in combination, a base, a burner above said base comprising a cup and a cover, said cover having a tubular body cooperating with said cup to form an air duct through said burner, a cone seating on said cover, a cone ring within said cone and in engagement therewith, and fastening devices passing down through said tubular air duct and connecting said cone ring with said base.

4. In a heater of the class described, in combination, a burner, a deflector thereabove adapted to throw the flame outwardly, a hood over said deflector adapted to receive the gases of combustion, means for directing an air current upwardly through said deflector, a plurality of air flues communicating with said deflector and adapted to pass the air upwardly, said hood having openings through which said flues pass upwardly, a plurality of gas flues seating on said hood and surrounding said air flues and spaced therefrom, and an upper head having hollow arms radiating therefrom and seating on said gas flues to receive the gases of combustion therefrom, said arms having openings in the upper sides thereof communicating with said air flues and adapted to pass the air upwardly through said upper head. I

5. In a heater of the class described, in combination, a burner, a deflector disposed above said burner and through which air may pass upwardly, a head seating on the upper end of said deflector, said head having a plurality of air flues passing upwardly therefrom and having an upwardly disposed post surrounded by said flues, and a hood supported on said post and having an edge projecting beyond said deflector.

6. In a heater of the class described, in combination, a burner, a deflector disposed over said burner, means for admitting air to the interior of the deflector, a head seating on the upper end of said deflector having a tubular body near the middle portion thereof, a hood seating on said tubular body and having an edge projecting beyond said deflector, a plurality of air flues seating on said head communicating with the interior of said deflector and passing upwardly, and a plurality of gas flues seating on said hood and enveloping said air flues respectively and spaced therefrom, said hood aflording means for passing the gases of combustion upwardly from said burner around said air flues.

7 A heater, comprising a burner, an inverted conical deflector seated on the burner and through which air passes, a head seated on the deflector, a hood carried by the head and having a downwardly extending screen surrounding the upper part of the deflector and spaced therefrom a plurality of air flues seated on the head and extending up through the hood, said flues opening into the deflector, gas flues seated on the hood and opening into the same, and an upper head to which the air and gas fiues are secured,

10 having a central body and radial apertured 1 arms, the air flues communicating with openings in the arms and the gas flues communicating with the interior of the said body.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CASPER C. SCHAEF-ER. lVitnesses HENRY SWINN, WV. A. CREILY. 

